package com.zenithmind.document.repository.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zenithmind.document.mapper.DocumentMapper;
import com.zenithmind.document.pojo.domain.Document;
import com.zenithmind.document.pojo.query.DocumentQueryDTO;
import com.zenithmind.document.pojo.vo.DocumentDetailVO;
import com.zenithmind.document.pojo.vo.DocumentStatisticsVO;
import com.zenithmind.document.repository.DocumentRepository;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Repository;

import java.time.LocalDateTime;
import java.util.List;

/**
 * 文档仓储实现类
 * 遵循依赖倒置原则：实现抽象的仓储接口
 * 遵循单一职责原则：专注于文档数据访问逻辑
 * 
 * @author ZenithMind Team
 * @since 2025-01-09
 */
@Slf4j
@Repository
@RequiredArgsConstructor
public class DocumentRepositoryImpl implements DocumentRepository {

    private final DocumentMapper documentMapper;

    @Override
    public Document findById(String id) {
        log.debug("根据ID查询文档: {}", id);
        return documentMapper.selectById(id);
    }

    @Override
    public Document save(Document document) {
        log.debug("保存文档: {}", document.getName());
        document.setCreateTime(LocalDateTime.now());
        document.setUpdateTime(LocalDateTime.now());
        documentMapper.insert(document);
        return document;
    }

    @Override
    public Boolean update(Document document) {
        log.debug("更新文档: {}", document.getId());
        document.setUpdateTime(LocalDateTime.now());
        return documentMapper.updateById(document) > 0;
    }

    @Override
    public Boolean deleteById(String id) {
        log.debug("删除文档: {}", id);
        return documentMapper.deleteById(id) > 0;
    }

    @Override
    public Boolean deleteByIds(List<String> ids) {
        log.debug("批量删除文档: {}", ids);
        return documentMapper.deleteBatchIds(ids) > 0;
    }

    @Override
    public Boolean existsById(String id) {
        log.debug("检查文档是否存在: {}", id);
        return documentMapper.selectById(id) != null;
    }

    @Override
    public IPage<Document> findPage(DocumentQueryDTO queryDTO) {
        log.debug("分页查询文档");
        
        Page<Document> page = new Page<>(queryDTO.getCurrent(), queryDTO.getSize());
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        
        // 构建查询条件
        if (queryDTO.getName() != null) {
            wrapper.like("name", queryDTO.getName());
        }
        if (queryDTO.getType() != null) {
            wrapper.eq("type", queryDTO.getType());
        }
        if (queryDTO.getCategoryId() != null) {
            wrapper.eq("category_id", queryDTO.getCategoryId());
        }
        if (queryDTO.getCreatorId() != null) {
            wrapper.eq("creator_id", queryDTO.getCreatorId());
        }
        if (queryDTO.getStatus() != null) {
            wrapper.eq("status", queryDTO.getStatus());
        }
        
        // 排序
        wrapper.orderByDesc("create_time");
        
        return documentMapper.selectPage(page, wrapper);
    }

    @Override
    public DocumentDetailVO findDetailById(String id, String userId) {
        log.debug("查询文档详情: id={}, userId={}", id, userId);
        // TODO: 实现文档详情查询，包含关联信息
        return null;
    }

    @Override
    public Boolean checkPermission(String documentId, String userId, String permission) {
        log.debug("检查文档权限: documentId={}, userId={}, permission={}", documentId, userId, permission);
        // TODO: 实现权限检查逻辑
        return true;
    }

    @Override
    public List<Document> findByCreatorId(String creatorId) {
        log.debug("查询用户文档: creatorId={}", creatorId);
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        wrapper.eq("creator_id", creatorId);
        wrapper.orderByDesc("create_time");
        return documentMapper.selectList(wrapper);
    }

    @Override
    public List<Document> findByCategoryId(String categoryId) {
        log.debug("查询分类文档: categoryId={}", categoryId);
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        wrapper.eq("category_id", categoryId);
        wrapper.orderByDesc("create_time");
        return documentMapper.selectList(wrapper);
    }

    @Override
    public List<Document> searchDocuments(String keyword, String userId, Integer limit) {
        log.debug("搜索文档: keyword={}, userId={}, limit={}", keyword, userId, limit);
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        wrapper.and(w -> w.like("name", keyword).or().like("title", keyword).or().like("content", keyword));
        if (userId != null) {
            wrapper.eq("creator_id", userId);
        }
        if (limit != null) {
            wrapper.last("LIMIT " + limit);
        }
        wrapper.orderByDesc("create_time");
        return documentMapper.selectList(wrapper);
    }

    @Override
    public List<Document> findHotDocuments(Integer limit) {
        log.debug("查询热门文档: limit={}", limit);
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        wrapper.orderByDesc("view_count");
        if (limit != null) {
            wrapper.last("LIMIT " + limit);
        }
        return documentMapper.selectList(wrapper);
    }

    @Override
    public List<Document> findLatestDocuments(Integer limit) {
        log.debug("查询最新文档: limit={}", limit);
        QueryWrapper<Document> wrapper = new QueryWrapper<>();
        wrapper.orderByDesc("create_time");
        if (limit != null) {
            wrapper.last("LIMIT " + limit);
        }
        return documentMapper.selectList(wrapper);
    }

    @Override
    public DocumentStatisticsVO getDocumentStatistics(String documentId) {
        log.debug("获取文档统计: documentId={}", documentId);
        // TODO: 实现文档统计查询
        return new DocumentStatisticsVO();
    }

    @Override
    public DocumentStatisticsVO getUserStorageStatistics(String userId) {
        log.debug("获取用户存储统计: userId={}", userId);
        // TODO: 实现用户存储统计查询
        return new DocumentStatisticsVO();
    }

    @Override
    public Boolean recordAccess(String documentId, String userId, String accessType) {
        log.debug("记录文档访问: documentId={}, userId={}, accessType={}", documentId, userId, accessType);
        // TODO: 实现访问记录逻辑
        return true;
    }

    @Override
    public Boolean updateStatistics(String documentId, String statisticsType) {
        log.debug("更新文档统计: documentId={}, statisticsType={}", documentId, statisticsType);
        // TODO: 实现统计更新逻辑
        return true;
    }

    @Override
    public List<Document> findRelatedDocuments(String documentId, Integer limit) {
        log.debug("查询相关文档: documentId={}, limit={}", documentId, limit);
        // TODO: 实现相关文档查询逻辑
        return List.of();
    }

    @Override
    public Integer countVersions(String documentId) {
        log.debug("查询文档版本数量: documentId={}", documentId);
        // TODO: 实现版本数量查询
        return 0;
    }

    @Override
    public Integer countShares(String documentId) {
        log.debug("查询文档分享数量: documentId={}", documentId);
        // TODO: 实现分享数量查询
        return 0;
    }
}
